Search for all of "Black Canyon", all of "Black Canyon ariz And Nev", all of "Hoover Dam ariz And Nev -- Design And Construction"

Shows a surveyor perched on the side of Black Canyon surveying the area preliminary to the construction of Hoover Dam. The Colorado River is visible below. On the back of the phot is hand-written "Rigger-rodman working with topographical...

Looking upstream on the Colorado River flowing through Black Canyon at the Hoover Dam construction site. Bridges and catwalks are suspended over the river and the newly-dug mouths of the diversion tunnels are seen on both sides of the...

Upstream view of Black Canyon and the Colorado River from the Hoover Dam construction site. A temporary dirt road is seen on the left side of the canyon floor, along with some scaffolding. Stray lumber is floating by...

View of the Colorado River flowing through Black Canyon at dusk. Bridges and catwalks illuminated by electric lights span the canyon over the river. Other electric illumination is seen throughout the construction site.

View of the Colorado River running through Black Canyon at the Hoover Dam construction site. Workers can be seen walking over bridges and catwalks that are suspended over the river, and on dirt roads that run alongside the river. ...

View from Black Canyon of the area which, when submerged, will become the Hoover Dam reservoir. In the foreground, a car is seen traveling a dirt road, and a lone construction worker views the scene from atop the rocks....

"Towards canyon, top of shed is to be entrance to Nevada spillway. Water will be up to about the top of shed". (hand-written inscription)
Shows site of the future entrance to the Nevada Spillway in Black Canyon. There is...

This shows a view looking down into Black (not Boulder) Canyon during early stages of construction of Hoover Dam. The Colorado River is in the process of being diverted and construction equipment and workers can be seen in the foreground.

This aerial photo shows various parts of the dam under construction. Cableways, an overhead tram, various buildings and structures, railroad tracks, trestles, and concrete forms are visible. Also shows the Arizona spillway, Arizona intake towers, the Himix plant...

This shows a view of the Colorado River flowing through Black Canyon not (Boulder). To the right of the picture there is a cloud of dirt and debris drifting into the air from blasting for the dam site.

Aerial view of the Hoover Dam construction site in Black Canyon showing multiple concrete pouring forms in front of a cofferdam. Draglines and trucks can be seen on the canyon floor, and overhead cableways carry cargo across the site.

Aerial view of Hoover Dam construction site looking upstream on the Colorado River in Black Canyon. Concrete pouring forms are seen around the dam wall in the center of the picture. Buildings, vehicles and roads are seen in the river...

Aerial view of the Hoover Dam construction site in Black Canyon showing the upstream dam face, which has concrete pouring forms on the top of it, the Arizona and Nevada spillways, and the unfinished Arizona intake towers. The Colorado Rivers...

Handwritten inscription on back of photo: "Building of new suspension bridge downstream from upper portals. Note man riding down on bridge section." Hoisting equipment is visible suspended high above the Colorado River in Black Canyon.

Aerial view of multiple concrete pouring forms on Hoover Dam, seen from downstream on the Colorado River in Black Canyon. Cables, pulleys and catwalks are suspended over the river. Some construction equipment can been seen on the mountains.

A bridge stretches from one side of Black (not Boulder) Canyon to the other side, with the Colorado River flowing beneath. The background shows scaffolding against the mountainside. A building sits against the mountain at the far end of the...

Shows four construction workers sitting on the bank of the Colorado River in Black Canyon, watching a dynamite blast at the Hoover Dam site. The blast started the flow of water. Hand-written inscription (sentence in quotes in title)...

Shows Black Canyon and the Colorado River at the site of the construction of Hoover Dam. Some roads and railroad tracks are visible as well as buildings. Shown also are railroad cars and a temporary suspension bridge.

Shows a panoramic view of the Hoover Dam site in Black Canyon. There are trucks and buildings visible on the floor of the canyon. One of the portals to the diversion tunnels is visible. The concrete pouring...

View of the beginning of Hoover Dam contruction at the bottom of Black Canyon. Various pieces of equipment, trucks, workers, etc. are visible including a crane suspended above the construction site. The view is from downstream.

Construction workers are pouring the first concrete for the foundation of Hoover Dam in the bottom of Black Canyon. Large bucket suspended from a crane is visible as well as the concrete frames for the pour.

View from high above the canyon of the early stages of building the wooden forms for pouring the concrete in the construction of Hoover Dam in Black Canyon. Vehicles and other equipment can be seen as well as hoisting...

View of the construction of the foundations of Hoover Dam on the floor of Black Canyon. Various pieces of machinery can be seen as well as a construction building. The view is taken from high above but several...

This photo shows the construction of the foundation of Hoover Dam on the floor of Black Canyon. Trucks, construction equipment, and cranes can be seen as well as several construction buildings. Photo taken from high above the canyon.

Aerial view of the Hoover Dam construction site on the Colorado River in Black Canyon. Cables are suspended across the canyon and a dirt road runs along the canyon floor. Early construction on a penstock tunnel can be...

View of the construction of Hoover Dam, looking upstream. Shows concrete forms, various construction buildings, and high scaling equipment. Taken from high above, the Colorado River can be seen above the dam site.

View from on high of Hoover Dam construction, looking upstream. The Colorado River can be seen above the dam. Also shows concrete forms, a train winding along the side of the canyon, high scaling equipment, construction buildings, and...

Overhead view of the construction of Hoover Dam in Black Canyon. Looking upstream, the Colorado River is visible above the dam site. Also shows concrete forms, a train winding along the side of the canyon, and various construction...

Construction site of Hoover Dam in Black Canyon, looking upstream. Above the site is the Colorado River. Shows concrete forms, a train winding along the wall of the canyon, various construction buildings, hoisting machinery, and a cable suspended...

View of Hoover Dam construction site, looking upstream. Above the site is the Colorado River. There are concrete forms, construction buildings, hoisting machinery, and a cable high above the Black Canyon in the picture. There is also...

Construction photo of Hoover Dam in Black Canyon, showing the Colorado River above the dam site. Also shows concrete forms, a train winding along the canyon wall, high scaling and hoisting machinery, various construction buildings and a cable suspended...

Overhead view of the construction of Hoover Dam in Black Canyon with the Colorado River visible above the dam site. In the photo are concrete forms, various construction buildings, a train winding along the side of the canyon, high...

Aerial view of the Hoover Dam construction site within Black Canyon. The nearly-completed dam wall is seen in the back and the mouths of the diversion tunnels are seen in the foreground. Buildings and scaffolding stand on the...

View of construction on Hoover Dam from a lookout point on the Nevada side. The dam wall is nearly completed and construction on the intake towers is seen in the background. In the foreground, people stand at the...

View of the Hoover Dam construction site within Black Canyon. The dam wall, intake towers and the road across the top of the dam wall are nearly complete. Construction equipment and buildings are seen in the mountains, and the Colorado...